E0455 — Oxygen tent, excluding croup or pediatric tents
E0455 is a HCPCS Level II code for oxygen tent, excluding croup or pediatric tents. It belongs to the Durable Medical Equipment section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Special coverage instructions apply
There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Medically Unlikely Edits — units per day
The most units of E0455 Medicare will pay on one date of service. Bill more on a single line and it is denied. The limit is not the same in every setting, so the row that matters is the one matching the claim you are building.
- practitioner
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- outpatient
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
- DME supplier
- 0 — never payable MAI 3 — Date of Service Edit: Clinical · CMS Policy
The adjudication indicator decides whether exceeding the limit is worth appealing at all: MAI 1 is a line edit you can support with documentation, MAI 3 is a date-of-service edit that is also appealable, and MAI 2 is absolute — no documentation overrides it. CMS MUE 2026Q3.
The CMS record for E0455
- Long descriptor
- Oxygen tent, excluding croup or pediatric tents
- Short descriptor
- Oxygen tent excl croup/ped t
- Added
- January 1, 1986
- BETOS
- D1C
- Pricing indicator
- 33 — DMEPOS
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Oxygen and oxygen equipment. Price subject to floors and ceilings.
Codes adjacent to E0455
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If E0455 is not quite right, the correct code is very often within a few positions of it.
- E0441Stationary oxygen contents, gaseous, 1 month's supply = 1 unit
- E0442Stationary oxygen contents, liquid, 1 month's supply = 1 unit
- E0443Portable oxygen contents, gaseous, 1 month's supply = 1 unit
- E0444Portable oxygen contents, liquid, 1 month's supply = 1 unit
- E0445Oximeter device for measuring blood oxygen levels non-invasively
- E0446Topical oxygen delivery system, not otherwise specified, includes all supplies and accessories
- E0447Portable oxygen contents, liquid, 1 month's supply = 1 unit, prescribed amount at rest or nighttime exceeds 4 liters per minute (lpm)
- E0450Volume control ventilator, without pressure support mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)terminated
- E0457Chest shell (cuirass)
- E0459Chest wrap
- E0460Negative pressure ventilator; portable or stationaryterminated
- E0461Volume control ventilator, without pressure support mode, may include pressure control mode, used with non-invasive interface (e.g., mask)terminated
- E0462Rocking bed with or without side rails
- E0463Pressure support ventilator with volume control mode, may include pressure control mode, used with invasive interface (e.g., tracheostomy tube)terminated
- E0464Pressure support ventilator with volume control mode, may include pressure control mode, used with non-invasive interface (e.g., mask)terminated
- E0465Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube)
Questions about E0455
What is HCPCS code E0455?
E0455 is a HCPCS Level II code for oxygen tent, excluding croup or pediatric tents. It sits in the Durable Medical Equipment section.
Does Medicare cover E0455?
The CMS HCPCS file marks E0455 as "Special coverage instructions apply". There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.